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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2015-05-29 16:01:18 +0300 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2015-06-12 23:30:47 +0300 |
| commit | 5f741b39dde47c054af78727cce7202fff9f781b (patch) | |
| tree | e0ba2b0b2f0b4a301b7c23c1439ee80fc0e33237 /drivers/gpu/drm/omapdrm/omap_gem.c | |
| parent | 6646dfd02985eb67d8dcc00d0d345c8dc40f9925 (diff) | |
drm: omapdrm: new vblank and event handling
Rework the crtc event/flip_wait system as follows:
- If we enable a crtc (full modeset), we set omap_crtc->pending and
register vblank irq.
- If we need to set GO bit (page flip), we do the same but also set the
GO bit.
- On vblank we unregister the irq, clear the 'pending' flag, send vblank
event to userspace if crtc->state->event != NULL, and wake up
'pending_wait' wq.
- In omap_atomic_complete() we wait for the 'pending' flag to get reset
for all enabled crtcs using 'pending_wait' wq.
The above ensures that we send the events to userspace in vblank, and
that after the wait in omap_atomic_complete() everything for the
affected crtcs has been completed.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'drivers/gpu/drm/omapdrm/omap_gem.c')
0 files changed, 0 insertions, 0 deletions